Claude Mythos 5 vs Claude Sonnet 5
Change modelsClaude Mythos 5Anthropic
Claude Sonnet 5Anthropic
IndexAll categories, out of 100.
70.8 ±8.6 best
64.2 ±2.7
GapIndex points below the top.
Top
−6.6 · no clear gap
CoverageIndex weight that has results.
65%
95% best
SpeedOutput tokens per second.
—
75/s
EloLMArena rating and rank.
—
1442
ReleasedMonth of release.
2026-06
2026-06
Input / 1MUS dollars per 1M input tokens.
$10.00
$2.00 best
Output / 1MUS dollars per 1M output tokens.
$50.00
$10.00 best
Batch output / 1MBatch price per 1M output tokens.
—
$5.00
1K chats2K tokens in, 500 out, each.
$45.00
$9.00 best
1K documents20K tokens in, 1K out, each.
$250.00
$50.00 best
1K agent tasks200K tokens in, 20K out, each.
$3,000.00
$600.00 best
ContextMaximum tokens in one request.
1M
1M
AgenticMulti-step tasks with tools.
70.0 best
65.3
CodingCode writing and repair.
74.4 best
65.3
ReasoningLogic problems and puzzles.
—
66.5
MultimodalTasks with images and text.
70.8 best
59.6
KnowledgeFacts and expert knowledge.
74.9 best
59.0
MultilingualTasks in many languages.
—
—
InstructionTasks with strict prompt rules.
—
55.8
MathMath problems.
—
64.8
Benchmarks
9 sharedOnly Claude Mythos 5: 3Only Claude Sonnet 5: 77
Claude Mythos 5
Claude Sonnet 5